NCC 2022 Volume Three - Plumbing Code of Australia
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C3

Part C3 On-site wastewater management

Part C3 On-site wastewater management

VIC C3P1 Health impactsNew for 2022

Delete subclause C3P1(1) and insert VIC C3P1(1) as follows:

On-site wastewater management systems must protect public health by ensuring that—

  1. risks associated with the discharge of treated wastewater and/or the end product from a composting toilet to the environment are minimised; and
  2. foul air and gasses are prevented from accumulating within or entering into buildings; and
  3. the likelihood of contamination of the drinking water supply is avoided, and
  4. it complies with the requirements of the authority having jurisdiction.

VIC C3P5 General requirementsNew for 2022

Delete clause C3P5 and insert VIC C3P5 as follows:

On-site wastewater management systems that facilitate on-site storage, treatment, disposal or re-use of wastewater must be designed, constructed, installed, replaced, repaired, altered and maintained—

  1. with required treatment and storage capacity for the volume and make up of waste and frequency of discharge for disposal; and
  2. with required size, strength and rigidity for the nature, flow rates, volume of wastes and/or waste products which must be processed; and
  3. using materials which are impervious both to the waste for which disposal is required and to water; and
  4. to avoid the likelihood of surface water and stormwater entering the system; and
  5. in accordance with the requirements and agreement of the relevant authority having jurisdiction.

VIC C3P6 Land application systemsNew for 2022

Delete clause C3P6 and insert VIC C3P6 as follows:

(1) On-site wastewater management systems and associated land application systems must—

  1. complete the treatment, uptake and absorption of the final effluent within the boundaries of the approved area; and
  2. protect against internal contamination; and
  3. provide ventilation to avoid the likelihood of foul air and gases from accumulating in the system; and
  4. transfers wastes safely and hygienically.

(2) On-site wastewater management systems and associated land application systems must—

  1. avoid the likelihood of the creation of unpleasant odours or the accumulation of offensive matter; and
  2. avoid the likelihood of stormwater run-off entering the system; and
  3. avoid the likelihood of root penetration or ingress of ground water entering the system; and
  4. avoid the likelihood of unintended or uncontrolled discharge; and
  5. avoid the likelihood of blockage and leakage; and
  6. avoid the likelihood of damage from superimposed loads or ground movement; and
  7. avoid the likelihood off effluent and foul air and gasses entering the building.

(3) The on-site wastewater management system and associated land application system continue to meet the above requirements throughout its serviceable life.

VIC C3P7 Access for maintenanceNew for 2022

Delete clause C3P7 and insert VIC C3P7 as follows:

(1) On-site wastewater management systems that facilitate on-site storage, treatment, disposal or re-use of wastewater must—

  1. provide vehicle access for collection, if necessary; and
  2. avoid the likelihood of unauthorised access by people; and
  3. provide safe access for cleaning, clearing blockages, maintenance, measurement and performance sampling.

(2) Land application systems must—

  1. provide safe access, as required, for clearing blockages and maintenance; and
  2. incorporate provisions, as required, for effective cleaning.